Reni weather in December

In December, Reni sees average daytime highs of 4°C and overnight lows near -2°C, with 37 mm of precipitation across 6.1 wet days and about 8.6 hours of daylight. It is the 11th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 5°C in the first days to 3°C by the end. The sky is clear or mostly clear about 22% of the time in December, and the air most often feels dry.

Daylight stretches from about 8 h 48 min at the start of December to 8 h 36 min by month's end. Set against the rest of the year, December is Reni's 11th-clearest and 3rd-windiest month. For the whole year in context, see Reni's year-round climate.

Daytime high
11th warmest
Overnight low
-2°
3rd coldest
Precipitation
37 mm
6.1 wet days
Daylight
8 h 30 min
7:47 AM – 4:19 PM
Cloud cover
69%
11th clearest
Wind
12 km/h
3rd windiest
Solar energy
1.14 kWh/m²
Travel score
0.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 5°C in the first days to 3°C by the end.

A typical December day in Reni reaches about 4°C in the afternoon and slips back to -2°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between -3°C and 10°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
161
260
350
450
550
650
750
85-1
94-1
104-1
114-1
124-1
134-1
144-1
154-2
163-2
173-2
183-2
193-2
203-2
213-2
223-2
233-2
243-2
253-2
263-3
273-3
283-3
293-3
303-3
313-3

How December really feels in Reni

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
31
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Reni weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°335.63.38.90.0
Feb / -2°255.22.510.10.2
Mar10° / 376.91.311.62.6
Apr17° / 417.80.213.25.5
May23° / 13°519014.77.0
Jun27° / 17°589015.46.7
Jul29° / 19°417.5015.16.0
Aug29° / 18°345.4013.96.4
Sep24° / 14°385.3012.37.7
Oct17° / 405010.75.9
Nov10° / 345.719.32.4
Dec / -2°376.12.48.60.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 11% of December, with mostly cloudy or overcast conditions the remaining 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33169
43169
53070
63070
73268
83268
93268
103169
113268
123268
133268
143268
153367
163367
173367
183466
193466
203565
213565
223565
233565
243664
253565
263565
273565
283466
293565
303466
313466

Chance of precipitation in December

Any precipitationSnow

Reni gets around 37 mm of rain and snow over 6.1 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 20% and peaks near 22% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1215
2205
3205
4205
5205
6205
7195
8196
9196
10196
11196
12197
13197
14197
15198
16198
17199
18199
19199
20209
212010
222010
232010
242010
252111
262111
272111
282112
292112
302212
312213

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, December lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 12 km/h in December.

Across December, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 8 h 48 min at the start of December to 8 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:33 AM to 7:53 AM, and sunset from 4:20 PM to 4:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
18.87:334:20
28.87:344:20
38.77:354:19
48.77:364:19
58.77:374:19
68.77:384:19
78.77:394:19
88.67:404:19
98.67:414:18
108.67:424:18
118.67:434:18
128.67:444:19
138.67:454:19
148.67:454:19
158.57:464:19
168.57:474:19
178.57:484:19
188.57:484:20
198.57:494:20
208.57:494:20
218.57:504:21
228.57:504:21
238.57:514:22
248.57:514:22
258.57:524:23
268.57:524:23
278.57:524:24
288.57:534:25
298.57:534:26
308.67:534:26
318.67:534:27

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.14 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.14 kWh/m² to a high of 6.23 kWh/m² in June across the year — December's 1.14 kWh/m² sits near the bottom.

00.511.52151015202531
Solar energy (kWh/m²)Level
11.2Dim
21.2Dim
31.1Dim
41.1Dim
51.1Dim
61.1Dim
71.1Dim
81.1Dim
91.1Dim
101.1Dim
111.1Dim
121.1Dim
131.1Dim
141.1Dim
151.1Dim
161.1Dim
171.1Dim
181.1Dim
191.1Dim
201.1Dim
211.1Dim
221.1Dim
231.2Dim
241.2Dim
251.2Dim
261.2Dim
271.2Dim
281.2Dim
291.2Dim
301.2Dim
311.2Dim
Planning a trip in December

Is December a good time to visit Reni?

Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

0.0
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Reni.

What to pack for Reni in December

From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In December, Reni sees daytime highs around 4°C and nights near -2°C. Pack a warm layer. Worth having: a heavy coat. About 6 days see rain.

a warm layera heavy coat

UV index in Reni in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 1. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Reni peaks around July 17 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 22UV 1
UV index (midday)Level
Jan1Low
Feb2Low
Mar3Moderate
Apr7High
May5High
Jun8Very high
Jul8Very high
Aug8Very high
Sep5High
Oct3Moderate
Nov1Low
Dec1Low
Location & terrain

Where is Reni?

Reni sits at 45.5°N, 28.3°E, 24 m above sea level, in Ukraine. The nearest listed city is Galaţi, 18 km away.

Tecuci

Topography around Reni

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Reni.

Within 3 km, the terrain around Reni has only modest variations in elevation — a maximum elevation change of 82 m around an average of 23 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 162 m; within 80 km, significant variations in elevation — a maximum elevation change of 463 m.

The land around Reni is covered by cropland (26%), grassland (24%) and trees (21%) within 3 km, cropland (59%) within 16 km, and cropland (65%) within 80 km.

3 km
82 m
16 km
162 m
80 km
463 m
treesgrasslandcroplandartificial surfaceswaterwetland
December weather nearby: Galaţi 18 km · Brăila 31 km · Bolhrad 36 km · Izmayil 45 km · Cahul 50 km · Tulcea 51 km · Kiliya 77 km · Tecuci 79 km

Ukraine travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$5,866
2025
Happiness
4.7 / 10
World Happiness, 2025
Safe drinking water
88%
of population, 2024
Homicide rate
3.8
per 100k, 2021
Road deaths
10.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 526

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Reni (45.4542°, 28.2773°, elevation 24 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).